2086442 has 4 divisors (see below), whose sum is σ = 3129666. Its totient is φ = 1043220.

The previous prime is 2086439. The next prime is 2086457. The reversal of 2086442 is 2446802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 811801 = 1129^2 + 901^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521609 + ... + 521612.

2^2086442 is an apocalyptic number.

2086442 is a deficient number, since it is larger than the sum of its proper divisors (1043224).

2086442 is a wasteful number, since it uses less digits than its factorization.

2086442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043223.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2086442 is about 1444.4521452786. The cubic root of 2086442 is about 127.7817325108.

The spelling of 2086442 in words is "two million, eighty-six thousand, four hundred forty-two".